<template>
  <div id="app">
    <keep-alive>
      <router-view/>
    </keep-alive>
    <!--<HelloWorld/>-->
  </div>
</template>
<script>
//  1、 引入组件
import HelloWorld from './components/Views/First.vue'
export default {
  name: 'App',
  // 2、映射组件标签
  components: {
    HelloWorld
  }
}
</script>
<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  /* text-align: center; */
  color: #2c3e50;
}
.customClass{
  max-height: 500px !important;
  overflow: auto !important;
}
.hide{
  display: none !important;
}
</style>
